We're upgrading Chandler Highway to improve traffic flow between Melbourne's inner east, south and north.
We understand that lowering traffic noise is important to you. That’s why we’re installing noise barriers as part of the upgrade. We’ve designed these noise barriers to help protect privacy and reduce traffic noise.
We measure noise on a scale of units called decibels, or dB for short.
Noise measurements are adjusted to reflect how our ears perceive noise, giving a noise unit called ‘A’ weighted decibels, or dB(A).
We use independent professional acoustic consultants to measure traffic noise, and they conducted noise modelling near and on the Chandler Highway before we started work. This helped us understand current noise levels and predict future noise levels when the project is complete.
Modelling indicated that there will be less than a 3dB(A) increase for residents once the upgrade is complete.
A 3dB(A) increase in noise level is only just noticeable to the human ear.
Noise reduction initiatives
We're implementing a range of measures to reduce noise along Chandler Highway, including:
- Stone Mastic Asphalt - a noise reducing asphalt used for the final layer of road surface.
- Noise barriers next to Rex Avenue - this barrier has been extended beyond what was initially planned.
- Noise barriers on the west side of the new Chandler Highway bridge - these barriers will span the entire length of the structure, between Rex Avenue and Yarra Boulevard.
Noise barrier appearance
The noise barriers next to Rex Avenue are of varying heights because of the uneven land surface. This creates a horizontal level at the top of the barrier. The noise barriers vary in height between 3 and 3.5 metres above road level. The noise barrier on the new Chandler Highway bridge is 2 metres tall.
The Rex Avenue noise barrier is made from timber to fit in with the look and feel of the surrounding area. Timber also helps to assist with noise absorption. The noise barriers on the Chandler Highway bridge are made from an acrylic material.
We’ve recently completed the noise wall extension past Rex Avenue and the installation of a noise wall on the new Chandler Highway bridge.
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